– When capturing images of the inner sidewalls of cylindrical objects, utilizing a wide-angle borescope proves effective.
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Wide-Angle Borescope ME.40175.00100 |
– Compared to a standard borescope, a wide-angle borescope offers a broader field of view, allowing for a more extensive visual inspection in one glance.
If the subject has a glossy appearance, it can be observed using our 3W coaxial illumination. However, if the object lacks gloss, the 3W coaxial illumination may not provide sufficient light intensity.
In such cases, the use of a higher-power coaxial illumination system is recommended.
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“High-power coaxial illumination” |
We observed the inner side of a 20mm diameter object using a wide-angle borescope
“Video: Observing the inner side of a cylindrical object with a wide-angle borescope (using borescope LED illumination)”
“Video: Observing the inner side of a cylindrical object with a wide-angle borescope (using high-power coaxial illumination)”
However, with a wide-angle borescope, it can be challenging to illuminate and observe objects larger than 25mm in diameter.
For such objects, there is a specialized lens known as a 360° internal inspection lens. Using this lens, we observed the inner side of a 50mm diameter glossy object.
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The object is a 50mm diameter cylindrical inner side. |
“Video: Observing a 50mm diameter object with a 360° internal inspection lens”
This lens allows for the observation of the interior surfaces without inserting the lens into the object, unlike a borescope.
Specifications of the lens used
| Model | Optical System Specifications | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Compatible Camera | Minimum Field of View (Diameter × Height) | Maximum Field of View (Diameter × Height) | Hole Diameter | Visible Object Height (High Resolution) | Visible Object Height (VGA | Working Distance (WD) | Wavelength Range | F-Number | |
| (inch) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (nm) | ||
| PCHI012 | 1/2 | 10×10 | 120×190 | 10〜120 | 6〜120 | 10〜190 | 5〜62 | 450〜650 | 5.8 |
Please note that the actual field of view in the height direction varies depending on the pixel size of the camera used (high resolution or VGA).
＜Camera Used＞
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USB 3.0 Camera (10 Megapixels, Color) |
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